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Normal and abnormal pulmonary ventilation: visualization at hyperpolarized He-3 MR imaging
Ist Teil von
Radiology, 1996-11, Vol.201 (2), p.564
Ort / Verlag
United States
Erscheinungsjahr
1996
Link zum Volltext
Quelle
MEDLINE
Beschreibungen/Notizen
To assess the feasibility of helium-3 magnetic resonance (MR) imaging with a three-dimensional fast low-angle shot (FLASH) sequence, He-3 gas (volume, 300 mL; pressure, 3 x 10(5) Pa; polarized up to 45% by means of optimal pumping) was inhaled by five healthy volunteers and five patients with pulmonary diseases. All breath-hold examinations (22-42 seconds) were completed successfully. Normal ventilation was depicted with homogeneous high signal intensity, lesions were depicted as causing defects, and obstructive lung disease was depicted with severely inhomogeneous signal intensity.